##// END OF EJS Templates
added the skip_known decorator
added the skip_known decorator

File last commit:

r3285:7b2be7dd
r3503:94644f89
Show More
sympy_printing.py
65 lines | 2.1 KiB | text/x-python | PythonLexer
Brian Granger
Display system is fully working now....
r3278 """A print function that pretty prints sympy Basic objects.
Authors:
* Brian Granger
"""
#-----------------------------------------------------------------------------
# Copyright (C) 2008-2011 The IPython Development Team
#
# Distributed under the terms of the BSD License. The full license is in
# the file COPYING, distributed as part of this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
Brian Granger
More improvements to the display system....
r3279 from IPython.lib.latextools import latex_to_png
from sympy import pretty, latex
Brian Granger
Display system is fully working now....
r3278
#-----------------------------------------------------------------------------
# Definitions of magic functions for use with IPython
#-----------------------------------------------------------------------------
def print_basic_unicode(o, p, cycle):
"""A function to pretty print sympy Basic objects."""
if cycle:
return p.text('Basic(...)')
out = pretty(o, use_unicode=True)
if '\n' in out:
p.text(u'\n')
p.text(out)
Brian Granger
More improvements to the display system....
r3279 def print_png(o):
"""A funciton to display sympy expression using LaTex -> PNG."""
Brian Granger
Using inline mode for rendering sympy Expr to latex.
r3283 s = latex(o, mode='inline')
Brian Granger
Fixing Matrix/overbar printing for sympy.
r3285 # mathtext does not understand certain latex flags, so we try to replace
# them with suitable subs.
Brian Granger
Small fixes for latex/png printing....
r3284 s = s.replace('\\operatorname','')
Brian Granger
Fixing Matrix/overbar printing for sympy.
r3285 s = s.replace('\\overline', '\\bar')
Brian Granger
More improvements to the display system....
r3279 png = latex_to_png(s, encode=True)
return png
Brian Granger
Display system is fully working now....
r3278 _loaded = False
def load_ipython_extension(ip):
"""Load the extension in IPython."""
global _loaded
if not _loaded:
plaintext_formatter = ip.display_formatter.formatters['text/plain']
plaintext_formatter.for_type_by_name(
'sympy.core.basic', 'Basic', print_basic_unicode
)
Brian Granger
Fixing Matrix/overbar printing for sympy.
r3285 plaintext_formatter.for_type_by_name(
'sympy.matrices.matrices', 'Matrix', print_basic_unicode
)
Brian Granger
More improvements to the display system....
r3279 png_formatter = ip.display_formatter.formatters['image/png']
png_formatter.for_type_by_name(
'sympy.core.basic', 'Basic', print_png
)
Brian Granger
Display system is fully working now....
r3278 _loaded = True